I can confirm that it is being tested at a lot of US hospitals.
The problem is that all that data being written about comes from studies where they excluded 1) people with severe symptoms of COVID and 2) people with any co-morbidities that might be exacerbated by HCQ.
Bad news, there are a WHOLE lot of people in that second group.
Worse news is that there are a whole lot of people in the first group.